<template>
  <div>
    <h1>当前求和为：{{ this.$store.state.sum }} </h1>
    <h1>当前求和放大10倍为：{{ this.$store.getters.bigSum }} </h1>
    <select v-model.number="n">
      <option value="1">1</option>
      <option value="2">2</option>
      <option value="3">3</option>
    </select>
    <button @click="increment">+</button>
    <button @click="decrement">-</button>
    <button @click="incrementOdd">当前求和为奇数再加</button>
    <button @click="incrementWait">等一等再加</button>
  </div>
</template>


<script>
export default {
  name: 'Count',
  data() {
    return {
      n: 1,
    }
  },
  mounted() {
    console.log(this.$store);
  },
  methods: {
    //加
    increment() {
      // this.sum += this.n
      this.$store.dispatch('jia', this.n)
    },
    //减
    decrement() {
      // this.sum -= this.n

      //直接跳过actions，操作mutation
      this.$store.commit('JIAN', this.n)
    },
    //incrementOdd
    incrementOdd() {
      // this.sum += this.n
      this.$store.dispatch('jiaOdd', this.n)
    },
    //
    incrementWait() {
      this.$store.dispatch('jiaWait', this.n)
    }
  },
}
</script>

<style lang="css">
button {
  margin-left: 6px;
}
</style>